The real concern is the environment around the sink. Bathroom counters collect toothpaste, soap residue, hair, and bacteria. Drinking from the tap is fine, but avoid cups or bottles left near dirty surfaces or cleaning products.
So what’s the final verdict? If your plumbing is modern and the water looks and smells normal, it’s safe to drink from the bathroom sink occasionally. But for everyday use, the kitchen tap—or even better, a clean water bottle—will give you the freshest and safest option.
